<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <!-- CSS only -->
    <link
      rel="stylesheet"
      href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css"
    />
    <style>
      .red {
        color: red!important;
      }
      .search {
        width: 300px;
        margin: 20px 0;
      }
      .my-form {
        display: flex;
        margin: 20px 0;
      }
      .my-form input {
        flex: 1;
        margin-right: 20px;
      }
      .table > :not(:first-child) {
        border-top: none;
      }
      .contain {
        display: flex;
        padding: 10px;
      }
      .list-box {
        flex: 1;
        padding: 0 30px;
      }
      .list-box  a {
        text-decoration: none;
      }
      .echarts-box {
        width: 600px;
        height: 400px;
        padding: 30px;
        margin: 0 auto;
        border: 1px solid #ccc;
      }
      tfoot {
        font-weight: bold;
      }
      @media screen and (max-width: 1000px) {
        .contain {
          flex-wrap: wrap;
        }
        .list-box {
          width: 100%;
        }
        .echarts-box {
          margin-top: 30px;
        }
      }
    </style>
  </head>
  <body>
    <div id="app">
      <div class="contain">
        <!-- 左侧列表 -->
        <div class="list-box">

          <!-- 添加资产 -->
          <form class="my-form">
            <input v-model.trim="name" type="text" class="form-control" placeholder="消费名称" />
            <input v-model.number="price" type="text" class="form-control" placeholder="消费价格" />
            <button @click="add" type="button" class="btn btn-primary">添加账单</button>
          </form>

          <table class="table table-hover">
            <thead>
              <tr>
                <th>编号</th>
                <th>消费名称</th>
                <th>消费价格</th>
                <th>操作</th>
              </tr>
            </thead>
            <tbody>
              <tr v-for="(item,index) in list" :key="item.id">
                <td>{{ index+1 }}</td>
                <td>{{ item.name }}</td>
                <td :class="{red: item.price >500}">{{ item.price.toFixed(2) }}</td>
                <td @click="del(item.id)"><a href="javascript:;">删除</a></td>
              </tr>
            </tbody>
            <tfoot>
              <tr>
                <td colspan="4">消费总计： {{ totalPrice.toFixed(2) }}</td>
              </tr>
            </tfoot>
          </table>
        </div>
        
        <!-- 右侧图表 -->
        <div class="echarts-box" id="main">

        </div>
      </div>
    </div>
    <script src="../echarts.min.js"></script>
    <script src="../vue.js"></script>
    <script src="../axios.js"></script>
    <script>
      /**
       * 接口文档地址：
       * https://www.apifox.cn/apidoc/shared-24459455-ebb1-4fdc-8df8-0aff8dc317a8/api-53371058
       * 
       * 功能需求：
       * 1. 基本渲染
       *  (1)立刻发送请求获取数据 created
       *  (2)拿到数据，存到data的响应式数据中
       *  (3)结合数据，进行渲染v-for
       *  (4)消费统计=>计算属性
       * 2. 添加功能
       *  (1)收集表单数据 v-model
       *  (2)给添加按钮注册点击事件，发送添加请求
       *  (3)需要重新选渲染
       * 3. 删除功能
       *  (1)注册点击事件，传参id
       *  (2)根据id发送删除请求
       *  (3)需要重新渲染
       * 4. 饼图渲染
       *  (1)初始化一个饼图 echarts.init(dom) mounted钩子实现
       *  (2)根据数据实时更新饼图 echarts.setOption({...})
       */
      const app = new Vue({
        el: '#app',
        data: {
          list:[],
          name: '',
          price: ''
        },
        computed:{
          totalPrice(){
            return this.list.reduce((sum,item)=> sum+item.price,0)
          }
        },

        created(){
            this.getList()
        },
        mounted(){
          this.myChart = echarts.init(document.querySelector('#main'))
          this.myChart.setOption({
            //大标题
            title: {
              text: '消费账单列表',
              left: 'center'
            },
            //提示框
            tooltip: {
              trigger: 'item'
            },
            //图例
            legend: {
              orient: 'vertical',
              left: 'left'
            },
            //数据项
            series: [
              {
                name: '消费账单',
                type: 'pie',
                radius: '50%',//半径
                data: [

                ],
                emphasis: {
                  itemStyle: {
                    shadowBlur: 10,
                    shadowOffsetX: 0,
                    shadowColor: 'rgba(0, 0, 0, 0.5)'
                  }
                }
              }
            ]
          })   
        },
        methods:{
          async getList(){
            const res = await axios({
              url: 'https://applet-base-api-t.itheima.net/bill',
              params: {
                creator: '666'
              }
            })
            this.list = res.data.data

            //更新图表
            this.myChart.setOption({
              //数据项
              series: [
                {
                  // data: [
                  // ],
                  data: this.list.map(item=> ({value: item.price, name:item.name }))
                }
              ]
            })
          },
          async add(){
            if(!this.name){
              alert('请输入消费名称')
              return
            }
            if(typeof this.price !=='number'){
              alert('请输入正确的消费价格')
              return
            }
            const res = await axios({
              url: 'https://applet-base-api-t.itheima.net/bill',
              method: 'post',
              data:
              {
                creator: '666',
                name: this.name,
                price: this.price
              }        
            })
            this.getList()
            this.name=''
            this.price=''
          },
          async del(id){
            const res = await axios({
              url: `https://applet-base-api-t.itheima.net/bill/${id}`,
              method: 'delete',
            })
            this.getList()
          }
        }
      })
    </script>
  </body>
</html>
